In addition to his research in planetary nebulae
and the physics of the interstellar medium, Arsen's
areas of active astrophysical research include spatial
optical interferometry, and precise interferometric
spectroscopy. He can sometimes be found at Anderson
Mesa, outside Flagstaff, Arizona, working with the
Navy
Prototype Optical Interferometry project, which
is measuring stellar positions and diameters and
splitting double stars with unprecedented accuracy.
Arsen is also completing the construction of a Fourier
Transform Spectrometer with which he hopes to detect
planets as small as the Earth in orbit about other
stars.

Arsen and his wife, Jenepher, celebrated the birth
of their son Krikor in January 2000.